Hewlett Packard (HP) HP Deskwriter 310 printer, Version 6.0.3 Driver. HP DeskWriter/HP DeskJet 300 Series Driver. This Macintosh QuickDraw driver supports the HP DeskWriter 310, HP DeskWriter 320, and the HP DeskJet 340 for Macintosh. It runs on a Macintosh host with System 7.0.1 or above. This printer driver has no support for System 6.xx. This driver version is required to print from Power Macintosh 7200, 7500, 8500, &amp; 9500. This driver does not support AppleTalk printing.